US6831381B2 - Electric drive, especially for motor vehicles - Google Patents

Electric drive, especially for motor vehicles Download PDF

Info

Publication number
US6831381B2
US6831381B2 US09/958,410 US95841002A US6831381B2 US 6831381 B2 US6831381 B2 US 6831381B2 US 95841002 A US95841002 A US 95841002A US 6831381 B2 US6831381 B2 US 6831381B2
Authority
US
United States
Prior art keywords
bearing
rotor shaft
bearing bush
commutator
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US09/958,410
Other languages
English (en)
Other versions
US20040070296A1 (en
Inventor
Eckhard Ursel
Bruno Droll
Walter Haussecker
Martin Karl
Wolfgang Thomar
Stefan Freund
Thomas Huck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Assigned to ROBERT BOSCH GMBH reassignment ROBERT BOSCH GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: URSEL, ECKHARD, THOMAR, WLFGANG, HAUSSECKER, WALTER, DROLL, BRUNO, FREUND, STEFAN, HUCK, THOMAS, KARL, MARTIN
Publication of US20040070296A1 publication Critical patent/US20040070296A1/en
Application granted granted Critical
Publication of US6831381B2 publication Critical patent/US6831381B2/en
Adjusted expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/081—Structural association with bearings specially adapted for worm gear drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • F16C2380/27—Motor coupled with a gear, e.g. worm gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

Definitions

  • the invention is based on an electrical drive mechanism, particularly for motor vehicles, according to the preamble to claim 1 .
  • the commutator-end bearing is embodied as a dome-shaped bearing and is disposed inside a recess of a cap-shaped housing part.
  • the bearing scat for the spherical segment-shaped bearing bush is constituted by an annular securing spring, which is inserted with an annular edge into the recess and, with a multitude of resilient fingers, which constitute the bearing seat, overlaps the half of the bearing bush oriented away from the commutator.
  • the securing spring rests with an annular collar against the housing part and is clamped against the housing wall by a fastening plate, which supports the brush holder and has an opening coaxial to the rotor shaft, so that the securing spring is fixed in the recess of the housing part.
  • the half of the bearing bush oriented toward the brush holder is overlapped by resilient fingers of a second securing spring, which constitutes the clamping member and is clipped into the opening of the fastening plate, where a collar of outer fingers engages behind the fastening plate and the securing spring is clamped to the fastening plate so that the inner resilient fingers exert an axial pressure on the bearing bush.
  • the electrical drive mechanism according to the engine has the advantage that the commutator-end bearing of the rotor shaft is comprised of only a few components, namely the bearing bush and the clamping member that constitutes an integral component of the brush holder.
  • the bearing seat is produced already in the production of the housing so that it incurs no additional manufacturing expenditure. Since the clamping member is a component of the brush holder, the assembly of the drive mechanism is significantly simplified.
  • the rotor shaft, which is equipped with an armature winding, commutator, brush holder, and bearing bush is slid into the housing and in so doing, the bearing bush is inserted into the bearing seat, as a result of which the brush holder and therefore also the bearing bush are secured in place in the bearing seat. With that, the assembly is already finished. The assembly process can easily be automated with no trouble.
  • the clamping member is constituted by means of two spring-elastic securing arms, which are disposed on the brush holder and extend parallel to the rotor shaft on diametrically opposed sides of it and are supported with their free ends against contact bevels provided on the bearing bush, which bevels are embodied as inclined at an acute angle in relation to the rotor shaft on the side of the bearing bush oriented toward the brush holder.
  • the contact bevels are constituted by circumference regions of the spherical segment-shaped bearing bush.
  • annular fitting which has a defined internal diameter and is supported in front of the bearing seat, is incorporated into the housing, and the free ends of the securing arms are inserted into this annular fitting.
  • This annular fitting prevents the spring-elastic securing arms from splaying outward when being slid onto the bearing bush so that the securing arms exert a compressive force with an axial force component onto the bearing bush, which fixes the bearing bush in the bearing seat in a frictionally engaged manner.
  • This frictional engagement between the bearing bush and the bearing seat prevents the rotor- or armature shaft from causing the bearing bush to rotate along with it, which would generate noise or cause a malfunction.
  • the bearing bush is also reliably prevented from rotating in the bearing seat along with the rotor shaft through the embodiment of reciprocally matched form-fitting elements on the bearing bush and bearing seat.
  • form-fitting elements can be provided on the surface of the bearing bush, which cooperate with matched opposing contours on the bearing seat and/or on the securing arms and as a result, secure the bearing bush in the bearing seat in a non-rotating manner.
  • form-fitting elements can be beads or flattenings.
  • the bearing of the rotor shaft is embodied as a dome-shaped bearing, the opposing contours must offer the possibility of being able to adapt to an inclined position of the armature shaft.
  • an arc-shaped slot is let into the end of each of the two securing arms. This slotting of the securing arms in their end regions can compensate for tolerances occurring in the axial and radial direction.
  • FIG. 1 shows a longitudinal section through a power window drive mechanism for motor vehicles
  • FIG. 2 shows a section along the line II—II in FIG. 1,
  • FIG. 3 shows a partial view of a longitudinal section through an electric motor of the power window drive mechanism according to FIG. 1,
  • FIG. 4 shows a representation of the electric motor equivalent to the one in FIG. 3, with a bearing bush.
  • the electrical power window drive mechanism for a motor vehicle which is shown in the partially schematic longitudinal section in FIG. 1, as an example for a typical electrical drive mechanism, has a housing 10 which contains a worm gear pair 11 with a worm gear 12 , which is supported in rotary fashion in the housing 10 , and a worm 13 that engages with this gear.
  • a commutator motor 14 with a stator 15 and armature or rotor 16 is situated against the housing 10 .
  • the stator 15 which is equipped with permanent magnets, is contained in a pole housing 18 which is screwed to the housing 10 by means of a fastening flange 19 .
  • the rotor 16 has a laminar rotor body 20 and an armature winding 21 , which is inserted into grooves of the rotor body 20 and connected to a commutator 22 .
  • the rotor body 20 and the commutator 22 are supported in a non-rotating fashion on a rotor shaft 17 which protrudes into the housing 10 and at its end, supports the worm 13 that engages with the worm gear 12 of the worm gear pair 11 .
  • the rotor shaft 17 is contained in a rotary fashion respectively by a first bearing 24 in the pole housing 18 and by a second bearing 25 in the housing 10 and is axially fixed by two axial support bearings 26 and 27 .
  • the second bearing 25 here is disposed between the commutator 22 and the worm 13 , while the first bearing 24 is disposed at the end of the rotor 16 oriented away from the commutator 22 .
  • Power is supplied to the armature winding 21 in a known fashion via commutator brushes 28 , also called carbon brushes, which are disposed in pairs on opposite sides of the commutator 22 and are pressed radially against the circumference of the commutator 22 by means of spring force.
  • the commutator brushes 28 are secured to a brush holder 30 so that they can move in the radial direction of the commutator 22 and are electrically connected via a stranded brush conductor 29 to a motor plug 31 embodied on the brush holder 30 .
  • the motor electronics are accommodated on a printed circuit board 32 likewise affixed to the housing and the rotational angle and/or the rotation of the rotor shaft 17 is sensed by means of an annular magnet 33 supported in non-rotary fashion on the rotor shaft 17 .
  • the first bearing 24 in the pole housing 18 is embodied as a cylindrical bearing, while the second bearing 25 oriented toward the commutator is embodied as a dome-shaped bearing 25 .
  • the dome-shaped bearing 25 has a centrosymmetrical, spherical, in particular spherical segment-shaped bearing bush 34 , which encloses the rotor shaft 17 with rotary play, and a spherical cap-shaped bearing seat of 35 formed into the housing 10 , which has a central opening 36 for the rotor shaft 17 to pass through.
  • Approximately half of the bearing bush 34 is contained in a form-fitting manner by the bearing seat 35 and is supported in it in the axial direction.
  • a clamping member 37 which generates an axial clamping force directed toward the bearing seat 35 , the bearing bush 34 is pressed into the bearing seat 35 so that the bearing bush 34 is secured in a frictionally engaged manner against rotation in the bearing seat 35 .
  • the clamping member 37 engages with contact surfaces 38 embodied on the surface of the bearing bush 34 , which in the case of the dome-shaped bearing 25 depicted here, are constituted by the circumference regions of the bearing bush part protruding from the bearing seat 35 .
  • the clamping member 37 is a one-piece component of the brush holder 30 that is comprised of plastic.
  • the brush holder 30 has a pair of spring-elastic securing arms 39 , which extend parallel to the rotor shaft 17 and are disposed on diametrically opposite sides of the rotor shaft 17 , which are supported with their free ends in a frictionally engaged manner against the contact surfaces 38 on the bearing bush 34 , i.e. against the spherical surface of the part of the dome-shaped bearing bush 34 protruding from the bearing seat 35 and to this end, have correspondingly embodied, for example spherical or tangential, contact surfaces 40 on their ends.
  • an annular fitting 41 which has a definite internal diameter and is supported in front of the bearing seat 35 , is incorporated into the housing 10 .
  • the securing arms 39 are inserted into the annular fitting 41 and rest with their outer surface oriented away from the rotor shaft 17 against the cylindrical wall of the annular fitting 41 .
  • the securing arms 39 arc embodied as arc-shaped segments that fit snugly into the annular fitting 41 at their ends.
  • the rotor 16 is completed by adding the rotor shaft 17 , commutator 22 , annular magnet 33 , and bearing bush 34 . Then the worm 13 , whose outer diameter is greater than the inner diameter of the bearing bush 34 , is rolled onto the end of the rotor shaft 17 and the rotor 16 is inserted into the stator 15 in this state. Then, starting from the free end of the rotor shaft 17 , the brush holder 30 is slid onto the rotor shaft 17 until it rests against the stator 15 .
  • a mounting sleeve which has an outer diameter virtually identical to the annular magnet 33 and the commutator 22 and encompasses the bearing bush 34 with resilient snap hooks.
  • the mounting sleeve assures that the commutator brushes 28 protruding radially on the brush holder 30 do not get “hung up” on the corners of the annular magnet 33 and the commutator 22 , thus preventing further installation of the brush holder 30 .
  • the securing arms 39 on the brush holder 30 are splayed outward by the mounting sleeve.
  • the mounting sleeve If the mounting sleeve is withdrawn again, then by means of its above-mentioned snap hooks, it causes the bearing sleeve 34 to move along with it so that the securing arms 39 spring back.
  • the bearing bush 34 Upon final withdrawal of the mounting sleeve, the bearing bush 34 is separated from the mounting sleeve by the larger diameter worm 13 and as a result of gravity—since the assembly is executed with a vertically aligned rotor shaft 17 , falls down onto the securing arms 39 which have already sprung back. Then the housing 10 is fitted into place, as a result of which the bearing bush 34 presses into the bearing seat 35 and the free ends of the securing arms 39 press into the annular fitting 41 .
  • the pole housing 18 is a screwed to the housing 10 .
  • the bearing bush 34 is automatically clamped into and secured in the correct support position in the housing 10 , between the securing arms 39 of the brush holder 30 and the bearing seat 35 .
  • the securing arms 39 are likewise automatically locked in place in the housing 10 by the annular fitting 41 and consequently, the securing arms 39 are prevented from springing outward as a result of axial stress.
  • the brush holder 30 is also fixed between the housing 10 and the pole housing 18 .
  • the rotor 16 When the housing 10 is slid over the rotor shaft 17 , the rotor 16 is aligned in as exactly coaxial a fashion as possible in the pole housing 18 so that the rotor shaft 17 stands exactly vertical.
  • the attraction force of the permanent magnets in the pole housing 18 causes the rotor 16 to strive to come to rest laterally against the stator 15 .
  • the securing arms 39 are embodied as elongated so that they engage the bearing bush 34 beyond its center of symmetry. This achieves a support of the rotor shaft 17 and prevents the rotor shaft 17 from leaning to the side.
  • the required securing of the bearing bush 34 against rotation in the bearing seat 35 can also be achieved by embodying form-fitting elements on the bearing bush 34 , which cooperate with matched opposing contours on the bearing seat 35 and/or on the securing arms 39 and as a result, reliably prevent the bearing bush 34 from rotating in the bearing seat 35 .
  • These form-fitting elements can be constituted by beads or flattenings.
  • the opposing contours in the bearing seat 35 and/or on the securing arms 39 must give the dome-shaped bearing bush 34 the possibility of being able to adapt to an inclined position of the rotor shaft 17 since the latter is deflected within limits by the forces generated by the gearing of the worm.
  • the bearing that is oriented toward the commutator and is embodied as described above can also be used in other electrical drive mechanisms, e.g. in electrical drive mechanisms for windshield wipers.
  • the bearing oriented toward the commutator can also be embodied as a cylindrical bearing.
  • Support surfaces must then be provided in the bearing seat 35 , against which the bearing bush can be supported in the axial direction and contact surfaces must be embodied on the bearing bush, which are inclined at an acute angle in relation to the rotor shaft 17 and against which the free ends of the securing arms 39 are supported in a frictionally engaged fashion.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Dc Machiner (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Window Of Vehicle (AREA)
US09/958,410 2000-02-12 2001-02-09 Electric drive, especially for motor vehicles Expired - Fee Related US6831381B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10006350 2000-02-12
DE10006350.0 2000-02-12
DE10006350A DE10006350A1 (de) 2000-02-12 2000-02-12 Elektrischer Antrieb, insbesondere für Kraftfahrzeuge
PCT/DE2001/000507 WO2001059912A1 (de) 2000-02-12 2001-02-09 Elektrischer antrieb, insbesondere für kraftfahrzeuge

Publications (2)

Publication Number Publication Date
US20040070296A1 US20040070296A1 (en) 2004-04-15
US6831381B2 true US6831381B2 (en) 2004-12-14

Family

ID=7630754

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/958,410 Expired - Fee Related US6831381B2 (en) 2000-02-12 2001-02-09 Electric drive, especially for motor vehicles

Country Status (9)

Country Link
US (1) US6831381B2 (cs)
EP (1) EP1169768A1 (cs)
JP (1) JP2003523160A (cs)
KR (1) KR20010113787A (cs)
CN (1) CN100367633C (cs)
CZ (1) CZ301346B6 (cs)
DE (1) DE10006350A1 (cs)
TW (1) TW595071B (cs)
WO (1) WO2001059912A1 (cs)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050082925A1 (en) * 2002-08-30 2005-04-21 Hiroaki Yamamoto Motor
US20050168853A1 (en) * 2003-12-24 2005-08-04 Ichikoh Industries, Ltd. Motor driving unit and vehicle-door mirror
US20080022521A1 (en) * 2004-03-05 2008-01-31 Simofi-Iiyes Attila Universal terminal bar structure with ground contacting feature integrated into a body structure with versatile RFI suppression for electric motors
US20080116758A1 (en) * 2005-04-26 2008-05-22 Igarashi Electric Works Ltd. Electric actuator and a motor used therein
US20100079020A1 (en) * 2008-09-28 2010-04-01 Xian Tang Motor assembly
US20150303769A1 (en) * 2014-04-18 2015-10-22 Johnson Electric S.A. Gear Motor Assembly

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2897992A1 (fr) * 2006-02-24 2007-08-31 Arvinmeritor Light Vehicle Sys Dispositif d'assemblage pour moteur electrique.
DE102006042340A1 (de) * 2006-09-08 2008-03-27 Robert Bosch Gmbh Elektromotor, insbesondere für einen Scheibenwischerantrieb eines Kraftfahrzeugs mit einer verbesserten Aufnahme der Lagerung der Ankerwelle
DE102007057706A1 (de) * 2007-11-30 2009-06-04 Robert Bosch Gmbh Elektrischer Antriebsmotor, insbesondere für ein Aggragat in einem Kraftfahrzeug
DE102008043665A1 (de) 2008-11-12 2010-05-20 Robert Bosch Gmbh Elektromotorische Antriebseinrichtung
DE102009001714A1 (de) 2009-03-20 2010-09-23 Robert Bosch Gmbh Elektrischer Antriebsmotor, insbesondere für ein Aggregat in einem Kraftfahrzeug
DE102010062034A1 (de) * 2010-11-26 2012-05-31 Robert Bosch Gmbh Schirmungsanordnung für einen bürstenkommutierten Elektromotor sowie Stellgeber mit einem Elektromotor
DE102012101139A1 (de) * 2011-02-18 2012-08-23 Johnson Electric S.A. Permanentmagnetmotor
CN105099066A (zh) * 2014-04-29 2015-11-25 博世汽车部件(长沙)有限公司 电驱动装置
FR3067884B1 (fr) * 2017-06-20 2019-07-05 Valeo Equipements Electriques Moteur Porte-balai pour machine electrique tournante
US11355993B2 (en) * 2018-09-10 2022-06-07 Robert Bosch Mexico Sistemas Automotrices S. A. de C.V. Housing including snap-fit connection between housing components

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026432A (en) * 1960-07-01 1962-03-20 Ford Motor Co Dynamoelectric machine
US3087081A (en) * 1957-11-25 1963-04-23 Ford Motor Co Dynamoelectric machine
US3431446A (en) * 1967-07-25 1969-03-04 Rae Motor Corp Electric motor brush holder,cap and spring
US3549218A (en) * 1969-05-02 1970-12-22 Ford Motor Co End thrust control device for a rotating shaft
GB2152294A (en) 1983-12-14 1985-07-31 Mabuchi Motor Co Cover plate
DE3500723A1 (de) 1984-03-23 1985-09-26 Robert Bosch Gmbh, 7000 Stuttgart Wechsel-, insbesondere drehstrom-generator fuer fahrzeuge
US4806025A (en) * 1986-12-09 1989-02-21 Mitsuba Electric Manufacturing Co., Ltd. Holding device for automatic self-aligning ball metal
FR2723490A1 (fr) 1994-08-04 1996-02-09 Valeo Systemes Dessuyage Machine electrique tournante comme un moteur electrique a inducteur constitue par des aimants permanents.
US5576586A (en) 1992-10-24 1996-11-19 Licentia Patent-Verwaltungs-Gmbh Electric motor, particularly a commutator motor sealed to be liquid-tight, for driving an axially flange-mounted hydraulic pump
US6759783B2 (en) * 2000-02-19 2004-07-06 Robert Bosch Gmbh Electric motor, in particular for raising and lowering disks in motor vehicles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB273637A (en) * 1926-06-30 1927-09-22 British Insulated Cables Ltd Improvements in and connected with electrical fan and like motors
US3624434A (en) * 1970-11-20 1971-11-30 Gen Motors Corp Bearing support assembly for dynamoelectric machines and a method of manufacture therefor
DE2847099A1 (de) * 1978-10-30 1980-05-14 Siemens Ag Halterung fuer kalottenlager
US5505548A (en) * 1993-05-10 1996-04-09 Ametek, Inc. Bearing retainer
DE19636872A1 (de) * 1996-09-11 1998-03-12 Bosch Gmbh Robert Kalottenlager

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087081A (en) * 1957-11-25 1963-04-23 Ford Motor Co Dynamoelectric machine
US3026432A (en) * 1960-07-01 1962-03-20 Ford Motor Co Dynamoelectric machine
US3431446A (en) * 1967-07-25 1969-03-04 Rae Motor Corp Electric motor brush holder,cap and spring
US3549218A (en) * 1969-05-02 1970-12-22 Ford Motor Co End thrust control device for a rotating shaft
GB2152294A (en) 1983-12-14 1985-07-31 Mabuchi Motor Co Cover plate
DE3500723A1 (de) 1984-03-23 1985-09-26 Robert Bosch Gmbh, 7000 Stuttgart Wechsel-, insbesondere drehstrom-generator fuer fahrzeuge
US4806025A (en) * 1986-12-09 1989-02-21 Mitsuba Electric Manufacturing Co., Ltd. Holding device for automatic self-aligning ball metal
US5576586A (en) 1992-10-24 1996-11-19 Licentia Patent-Verwaltungs-Gmbh Electric motor, particularly a commutator motor sealed to be liquid-tight, for driving an axially flange-mounted hydraulic pump
FR2723490A1 (fr) 1994-08-04 1996-02-09 Valeo Systemes Dessuyage Machine electrique tournante comme un moteur electrique a inducteur constitue par des aimants permanents.
US6759783B2 (en) * 2000-02-19 2004-07-06 Robert Bosch Gmbh Electric motor, in particular for raising and lowering disks in motor vehicles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050082925A1 (en) * 2002-08-30 2005-04-21 Hiroaki Yamamoto Motor
US7138736B2 (en) * 2002-08-30 2006-11-21 Asmo Co., Ltd Motor
US20050168853A1 (en) * 2003-12-24 2005-08-04 Ichikoh Industries, Ltd. Motor driving unit and vehicle-door mirror
US7298061B2 (en) * 2003-12-24 2007-11-20 Ichikoh Industries, Ltd. Motor driving unit and vehicle-door mirror
US20080022521A1 (en) * 2004-03-05 2008-01-31 Simofi-Iiyes Attila Universal terminal bar structure with ground contacting feature integrated into a body structure with versatile RFI suppression for electric motors
US20080116758A1 (en) * 2005-04-26 2008-05-22 Igarashi Electric Works Ltd. Electric actuator and a motor used therein
US20100079020A1 (en) * 2008-09-28 2010-04-01 Xian Tang Motor assembly
US8487492B2 (en) * 2008-09-28 2013-07-16 Johnson Electric S.A. Motor assembly with a bearing in a sleeve to support the shaft
US20150303769A1 (en) * 2014-04-18 2015-10-22 Johnson Electric S.A. Gear Motor Assembly
US9748817B2 (en) * 2014-04-18 2017-08-29 Johnson Electric S.A. Gear motor assembly

Also Published As

Publication number Publication date
EP1169768A1 (de) 2002-01-09
CN100367633C (zh) 2008-02-06
JP2003523160A (ja) 2003-07-29
CZ20013667A3 (cs) 2002-06-12
KR20010113787A (ko) 2001-12-28
CZ301346B6 (cs) 2010-01-27
US20040070296A1 (en) 2004-04-15
CN1363131A (zh) 2002-08-07
TW595071B (en) 2004-06-21
WO2001059912A1 (de) 2001-08-16
DE10006350A1 (de) 2001-08-16

Similar Documents

Publication Publication Date Title
US6831381B2 (en) Electric drive, especially for motor vehicles
US6163096A (en) Electrical drive unit
US5565721A (en) Electromotive drive
JPH04229051A (ja) 電動駆動装置
US5747911A (en) Brush holder
KR20030068416A (ko) 라디오 노이즈를 감소시키기 위한 접지구조를 구비한 모터
US20230179035A1 (en) Drive device having a brushless electric motor
US6617745B1 (en) Engine pump unit
US5081386A (en) Motor-operated pump of in-tank type
JP3958732B2 (ja) 回転電機およびその製造方法
JPH11252852A (ja) 駆動ユニット
GB2195059A (en) Electric motor bearing arrangement to permit greater axial bearing apparator
US4585968A (en) Device for holding and centering of a brush holder washer, during assembly, on an electric rotating commutator machine
EP0296715A1 (en) A housing for an electric motor and a method of making same
US6664698B1 (en) Commutator motor
JP2008206346A (ja) 直流モータ及びコンミテータの製造方法
EP0661186A1 (en) A mounting for a motor, particularly an electric motor for a fan associated with a heat-exchanger
JP3027051B2 (ja) 電動ポンプ
CN2062128U (zh) 一种供电机用的轴承装置
JP2007312453A (ja) 回転電機
KR100324639B1 (ko) 직류모터의 아마추어 샤프트 장착구조
JPH08223849A (ja) 直流モータ
KR20220090027A (ko) 모터
CN1312827C (zh) 电机激励器
JPH04108371U (ja) 電動モータの軸受部構造

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROBERT BOSCH GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:URSEL, ECKHARD;DROLL, BRUNO;HAUSSECKER, WALTER;AND OTHERS;REEL/FRAME:012597/0569;SIGNING DATES FROM 20011023 TO 20011107

FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Expired due to failure to pay maintenance fee

Effective date: 20121214